Graph the inequality.x - y > -2
A. 
B. 
C. 
D. 
Answer: B
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Solve using the quadratic formula.4x2 - 28x + 40 = 0
A. -2, 5 B. 2, 5 C. -2, -5 D. 2, -5
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
A. 8x39y12 B. 8xy12 C. 8xy4 D. 56xy12
Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 - 2x + 2y - 6 = 0
A. a. center = (-1, -1); radius = 2
b. (1 + 
, 0), (0, -1 + 
)
B. a. center = (-1, 1); radius = 8
b. (1 + 
, 0), (0, -1 + 
)
C. a. center = (1, -1); radius = 2
b. (-1 + 
, 0), (-1 - 
, 0), (0, 1 + 
), (0, 1 - 
)
D. a. center = (1, -1); radius = 2
b. (1 + 
, 0), (1 - 
, 0), (0, -1 + 
), (0, -1 - 
)
Graph the curve whose parametric equations are given.x = 2t - 1, y = t2 + 1; -4 ? t ? 4
A. 
B. 
C. 
D. 